Fixup of check.

Author: michaelnebel

.github/workflows/ci.yml

@@ -137,7 +137,7 @@ jobs:
 
       - name: Validate test results
         run: |
-          if [[ ! -f *-test-results/test_report_* ]]; then
+          if [[ ! -n "$(find . -name '*-test-results/test_report_**' -print -quit)" ]]; then
             # No test output to parse
             exit 0
           fi